c**i
发帖数: 6973 | 1 (1) Faster helicopters | Racing Rotors; Chop, chop. Economist, May 19, 2011
http://www.economist.com/node/18710100
Note:
(a) The ar5ticle says, "As the aircraft accelerates, the airspeed of a blade
(and thus the amount of lift it provides) increases when that blade is
moving forwards and decreases when it is moving backwards. Eventually, the
imbalance becomes unsustainable."
This is called "dissymmetry of lift."
Please
(i) BROWSE
helicopter
http://en.wikipedia.org/wiki/Helicopter#Limitations
(se... 阅读全帖 |
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w*******y
发帖数: 60932 | 2 JC Penney's has two different Remote Controlled Helicopters online in their
clearance section.
1.) Excalibur Sky Patroller Helicopter - Reg $50 on Sale for $19.99 -
Link:
http://www.jcpenney.com/jcp/X6.aspx?GrpTyp=PRD&ItemID=1cec6c4&s search.y=0&Ntt=helicopter&SearchString=helicopter&Ne=4 840 877 878 5 961 6 968 29 3 598 11 15 12 506 10 23 585 596 963 579 1031 8 1022 1014 586 1007 879 1027 18 904 903 969 833 949&hdnOnGo=true&NOffset=0&submit search.x=0&Nao=0&N=4294959029&SO=0&PSO=0&CmCatId=sear... 阅读全帖 |
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c**i
发帖数: 6973 | 3 I will repost it--except the last part. Yesterday I might have pushed the
worng button.
(1) Nathan Hodge, Robo-Copters Eye Enemies; Remote-Control Craft Expand High
-Tech Transformation of Military Operations. Wall Street Journal, May 17,
2011.
http://online.wsj.com/article/SB100014240
52748704281504576327602503154790.html
Note:
(a) USS Halyburton (FFG-40)
http://en.wikipedia.org/wiki/USS_Halyburton_(FFG-40)
(named for Pharmacist's Mate Second Class William D. Halyburton, Jr. (1924–
1945). Halyb... 阅读全帖 |
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w*******y
发帖数: 60932 | 4 TEAM RC 4.5" Remote Control Mini Helicopter, 3 Channel Infrared Remote
Control With 6 Way Precision Built-In Gyroscope, Metal & Plastic,
Multiplayer Up To 3 Helis, Red (HG251) $20.99 Shipped @Meritline:
http://www.meritline.com/rcteam-hg251-10-rc-helicopter-infrared
With Coupon Code MLCK261141020322AL1 limit 200 uses
Manufacturer Part # HG251
FEATURES
Full function 3 channel radio control (Left /Right, Forward/Backward, Hover,
and Lands)
Real life helicopter styling
3 channel digital proportio... 阅读全帖 |
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w*******y
发帖数: 60932 | 7 Link:
http://iway.org/9652421
This Brand New 3 Channel Gyro mini Metal rc helicopter is 1 of the world's
newest, smallest and lightest RC Helicopter you can get! At approx. 7.5"
long, it easily fits in the palm of your hand and is fully functional,
equipped with latest Gyroscope technology, which makes this helicopter an
instant hot seller in the RC World. This mini Gyro Metal helicopter charges
directly either from the USB cable or from the controller which uses "AA"
batteries and has a full-fu... 阅读全帖 |
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u***r
发帖数: 4825 | 8 https://www.rt.com/sport/479248-kobe-bryant-killed-helicoper-crash/
Traveling in his private helicopter, Bryant and four others crashed over
Calabasas on Sunday morning, TMZ reported. Emergency personnel responded,
but there were no survivors. His wife and four daughters are said to have
not been among the deceased.
Pop Crave
@PopCrave
Kobe Bryant has died in a helicopter crash in Calabasas Sunday morning, TMZ
Sports has confirmed. 🙏
View image on TwitterView image on Twitter
11.9K
1:28 ... 阅读全帖 |
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m*********a
发帖数: 3299 | 9 Two members of the FBI’s elite counterterrorism unit died Friday while
practicing how to quickly drop from a helicopter to a ship using a rope, the
FBI announced Monday in a statement.
The statement gave few details regarding the deaths of Special Agents
Christopher Lorek and Stephen Shaw, other than to say the helicopter
encountered unspecified difficulties and the agents fell a “significant
distance.”
Last month, the team was involved in the arrest of Dzhokhar Tsarnaev, a
suspect in the Boston... 阅读全帖 |
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d*********e
发帖数: 3835 | 11 Gearboxes to be checked for cracks every day.
North Sea helicopters are to undergo more regular safety checks following
orders from Europe's aviation body.
Operators of Sikorsky S-92 helicopters must now check for cracks on gearbox
feet on a daily basis.
In October, The European Aviation Safety Agency (EASA) ordered Sikorsky S-92
helicopters to be checked after every 10 hours flying time.
Sikorsky director Brian Young wrote to all S-92 operators last year to
inform them of faults found on the ge |
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d*********e
发帖数: 3835 | 12 PORT HARCOURT, Nigeria (AP) -- A Nigerian naval spokesman says one of its
helicopters crashed in the Niger Delta, likely killing the four people
onboard.
Commodore David Nabaida says the helicopter crashed Tuesday afternoon while
searching for a ship that supposedly ran aground in the region.
Nabaida says the helicopter went down near Port Harcourt International
Airport. The three officers and a seaman onboard are feared dead.
The commodore says an investigation will uncover what caused the cras |
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d*********e
发帖数: 3835 | 13 Rolls Royce is predicting a near-term recovery of the civil helicopter
market and is confident of long-term growth over the next 10 years.
Presenting the company's 10 year forecast at the Heli-Expo exhibition in
Houston, Rolls-Royce Helicopter Engines president Ken Roberts said the
underlying requirement to replace the aging airframes in use today would
supplement demand for helicopters in the civil market.
"In recent years the OEMs have been running a full capacity. There has
definitely been a |
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w*******y
发帖数: 60932 | 14 I'v ebeen watching this for a long time and it finally got below $21,Amazon
has Syma S107 R/C Helicopter with Built-in Gyroscope Remote - Yellow for $20
.96 & eligible for FREE Super Saver Shipping
You might also want to get New Syma S107 Metal Frame 3 Channel Infrared
Radio Remote Control Helicopter Main Blades Set--yellow Color:
http://www.amazon.com/Syma-Channel-Infrared-Helicopter-Set-yell
for $3.3 & eligible for FREE Super Saver Shipping
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w*******y
发帖数: 60932 | 15 Amazon alive again Syma S107 R/C Helicopter with Built-in Gyroscope Remote $
18.40 FSSS
Amazon Syma S107 R/C Helicopter with Built-in Gyroscope Remote $18.40 FSSS
Syma S107 R/C Helicopter with Built-in Gyroscope Remote $18.40 FSSS
red/yellow
Cheapest ever.
Link:
http://www.amazon.com/gp/product/B004A8ZRBA/ref=as_li_ss_tl?ie=
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G***G
发帖数: 16778 | 17 watch this video about helicopter rescuing.
http://www.youtube.com/watch?v=eeQh5hzvdyg
one minor question.
why did the helicopter not directly land on the roof,
but rescue victims by lifting them? |
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k****a
发帖数: 309 | 19 Yosemite Fire Prompts Helicopter Evacuation Near Half Dome Peak
by THE ASSOCIATED PRESS
September 08, 2014 4:00 AM ET
About 100 Yosemite National Park visitors were evacuated by helicopter
Sunday when a wildfire that started weeks ago in the park's backcountry grew
unexpectedly to at least 700 acres, officials said.
http://www.npr.org/2014/09/08/346732433/yosemite-fire-prompts-h |
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l********a
发帖数: 202 | 20 第一次去hawaii，想去big island 坐helicopter tour看volcano
有坐过的能推荐个公司？
因为不想在big island上住旅馆，当天往返，就坐个helicopter可行吗？ |
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vi
发帖数: 309 | 22 Judge Blocks Helicopter Parents From Stalking Student
December 27, 2012 - 2:59pm
An Ohio judge has issued an injunction barring the parents of a music
student at the University of Cincinnati from coming within 500 feet of their
daughter, The Cincinnati Enquirer reported. The daughter sought the
injunction after the parents repeatedly traveled from Kansas to the campus
to accuse her of using illegal drugs and being promiscuous. The parents
admitted that they installed monitoring software on their... 阅读全帖 |
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d*********e
发帖数: 3835 | 23 EMS helicopter pilot worries; "If they knew what I knew, even the nurse and
paramedic wouldn't get on board."
The crash this morning of an emergency medical helicopter in Tennessee is
another tragic reminder of the crisis in medical aviation. Three people were
killed when a Eurocopter AS350 operated by Hospital Wing crashed near
Brownsville, Tennessee after delivering a patient in Jackson. While the
crash happened shortly before 7:00 a.m., the bulk of the flight occurred
during what is considere |
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d*********e
发帖数: 3835 | 24 Helicopter Commercial Engineer - Canada
Qualifications & Experience:
* Engineering degree or equivalent experience
* Project Management Experience
* High attention to detail
* Five to ten (5 – 10) years of experience in an engineering role involving
significant customer interaction in an OEM or MRO environment
* Experience in interpreting, developing, and writing specifications,
proposals, and contracts
* An expert in technical /platform area and maintain current with industry
changes
* Broad kn... 阅读全帖 |
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d*********e
发帖数: 3835 | 25 Director, Helicopter Engine Shop - Canada
Desirable Qualifications:
* Aircraft Engineer with a minimum seven to ten (7-10) years relevant
experience
* Experience in successfully managing in an engine overhaul environment,
with a proven track record
* Knowledge of competitors and performance benchmarks
Job Description:
www.aviationrecruiting.net/candidates/jobs/director-helicopter-engine-shop/
Email at: c*****[email protected]. |
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w*******y
发帖数: 60932 | 28 Hobbytron is having their monthly RC car/airsoft gun giveaway. This month it
's the Stealth-X or the Mini Hawk Helicopter. 1 per customer, Ground
shipping is $10.45.
Next lowest price or the Stealth-X helicopter is $17.95 + $8.99 shipping at
amazon.
Free shipping if order amount is over $40.00 with coupon code "freeship"
Link:
http://www.hobbytron.com/
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w*******y
发帖数: 60932 | 30 Propel ToysStealth Flyer Remote-Controlled Helicopter
$15.00-30%=$10.50 original $49.99
30% off with coupon code LOVE2SAVE30
+ free shipping for Kohl's card holders with code LUVMVC
Link:
http://www.kohls.com/kohlsStore/toys2009/radioremotecontrol/PRD Toys Stealth Flyer RemoteControlled Helicopter.jsp
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w*******y
发帖数: 60932 | 34 Amazon Syma S107 R/C Helicopter with Built-in Gyroscope Remote $18.40 FSSS
Syma S107 R/C Helicopter with Built-in Gyroscope Remote $18.40 FSSS
red/yellow
Cheapest ever.
amazon.com/gp/product/B004A8ZRBA/ref=as_li_ss_tl?ie=U TF8&tag=_slickdeals-
20&linkCode=as2&camp =217145&creative=399 369&creati veASIN=B004A8ZRBA
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w*******y
发帖数: 60932 | 37 Yesterday I was at Target and saw the Lego Star Wars AAT miniset (30052) and
Lego City Helicopter miniset (4900) for 50% off which came to $1.99 instead
of $3.99. That made the AAT set at $0.043/piece and helicopter set at $0.
059/piece.
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s*********8
发帖数: 901 | 39 HONOLULU (AP) — Federal officials are investigating the fiery crash of a
tour helicopter that slammed into a mountain ridge on Hawaii's Molokai
island, killing the pilot and the four tourists aboard.
The aircraft carrying the five people was on a tourist excursion of West
Maui and Molokai when it went down near an elementary school Thursday,
authorities said.
Firefighters recovered four bodies and the fifth was located under the
wreckage, Maui County spokesman Rod Antone said.
The crash occurred... 阅读全帖 |
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g********s
发帖数: 590 | 43 【 以下文字转载自 Military 讨论区 】
发信人: geophysics (hoho), 信区: Military
标 题: Taiwan to buy helicopters from Europe
发信站: BBS 未名空间站 (Fri Feb 5 22:51:50 2010, 美东)
It is clear that both US and Europe are acting to force RMB to appreciate...
TG may feel a lot of pressure....
The arms deals are right before Hu core's visit to US and french president's
visit to Shanghai during ShiBo |
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B*******n
发帖数: 20645 | 44 Helicopter crashes ... hmmmmmm ... tomorrow red? |
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k****w
发帖数: 3753 | 45 Learn To Flight Helicopter (Early Bird Saves $20)
http://www.nycaaa.com/events/38284152/
Saturday, November 12, 2011, 10:00 AM
Heli Flights
425 Beaverbrook Road, Lincoln Park, NJ
Price: $129.00/per person (Early Birds) |
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c*********y
发帖数: 472 | 47 Helicopter Blue Hawaiian 2百多一个人，air tour Wings over一百多一个人。便宜
一半。看网上介绍，wing over 也挺小的，评价也不错。到底选哪一个呢？ |
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s***d
发帖数: 29 | 49 想带父母孩子去Grand Canyon,但hiking到谷底好像不太可行。所以想坐Helicopter
tour,不知道是否会比较好一点。有哪位网友曾经坐过，有什么公司或deal推荐吗？谢
谢！ |
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h****s
发帖数: 16779 | 50 deal一般少有。
想坐直升机体验一把就坐，谷底真的没啥看的。
想带父母孩子去Grand Canyon,但hiking到谷底好像不太可行。所以想坐Helicopter
tour,不知道是否会比较好一点。有哪位网友曾经坐过，有什么公司或dea........ |
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